rx_cancel_job

Artigo
07/15/2019

Usage

revoscalepy.rx_cancel_job(job_info: revoscalepy.computecontext.RxRemoteJob.RxRemoteJob,
    console_output: bool = False) -> bool

Description

This function does not attempt to retrieve any output objects; if the output is desired the console_output flag can be used to display it. This function does, however, remove all job-related artifacts from the distributed computing resources including any job results.

Arguments

job_info

A job to cancel

console_output

If None use the console option that was present when the job was created, if True output any console output that was present when the job was canceled will be displayed. If False then all console output will not be displayed.

Returns

True if the job is successfully canceled; False otherwise.z

Example

import time
from revoscalepy import RxInSqlServer
from revoscalepy import RxSqlServerData
from revoscalepy import rx_dforest
from revoscalepy import rx_cancel_job
from revoscalepy import RxRemoteJobStatus
from revoscalepy import rx_get_job_status
from revoscalepy import rx_cleanup_jobs

connection_string = 'Driver=SQL Server;Server=.;Database=RevoTestDb;Trusted_Connection=True;'
airline_data_source = RxSqlServerData(sql_query='select * from airlinedemosmall',
                                      connection_string=connection_string,
                                      column_info={
                                          'ArrDelay': {'type': 'integer'},
                                          'CRSDepTime': {'type': 'float'},
                                          'DayOfWeek': {
                                              'type': 'factor',
                                              'levels': ['Monday', 'Tuesday', 'Wednesday', 'Thursday',
                                                         'Friday',
                                                         'Saturday', 'Sunday']
                                          }
                                      })

# Setting wait to False allows the job to be run asynchronously
compute_context = RxInSqlServer(connection_string=connection_string,
                                num_tasks=1,
                                auto_cleanup=False,
                                wait=False)

job = rx_dforest(formula='ArrDelay ~ DayOfWeek',
                 seed=1,
                 data=airline_data_source,
                 compute_context=compute_context)

# Poll until status is RUNNING
status = rx_get_job_status(job)
while status == RxRemoteJobStatus.QUEUED:
    time.sleep(1)
    status = rx_get_job_status(job)

# Only running or queued jobs can be canceled
if status == RxRemoteJobStatus.RUNNING :
    # Cancel the job
    rx_cancel_job(job)

# Only canceled or failed jobs can be cleaned up
if status == RxRemoteJobStatus.CANCELED or status == RxRemoteJobStatus.FAILED :
    # Cleanup after the job
    rx_cleanup_jobs(job)

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